on 12

A standard scale from 1 to 10 used to judge how hyper, loud, or energetic someone is. When out with friends for the night, and someone is being exceptionally loud and annoying, they are "on 12".

Lucy: Is Maria coming out?
Mike: Yeah but that bitch is on 12 tonight!

by TheDarkFlower January 18, 2008

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12/12/12

The 12th of December 2012; everyone thought they'd die and the world would end

Omg it's 12/12/12 we're all gonna dieeeeee

by 5soschickenlicken February 04, 2017

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\/\/()12|)

The leet uber way for stupid-assh4x0r to say word. Means the same thing.

\/\/()12|) |_|p /\/\y |-|()/\/\|35.

by Fugaki October 22, 2004

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12"

A big dick that can make a chicks legs tremble in fear. To hard to grip as big as a humans beings forarm.

O my gosh i fucked dis dude wit dis 12" that made me cry i couldn't resist it was just to big.

by Montez Robertson May 16, 2007

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12s

The Seattle Seahawks' dynamic fan base. Regarded as the unrivaled loudest, proudest, most enthusiastic fans in the history of the NFL.

The 12s were in full force at Super Bowl 48; their crowd noise caused the safety to open the game because the Denver Broncos could not hear the snap count.

by Pooh Harrison February 03, 2014

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